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Name the inner part of the ear....

Name the inner part of the ear.

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**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks for the name of the inner part of the ear. This indicates that we need to identify the components that make up the inner ear. 2. **Identifying the Inner Ear**: The inner ear is a crucial part of the auditory system. It consists of two main structures that play significant roles in hearing and balance. 3. **Naming the Components**: - **Cochlea**: This is the first main part of the inner ear. It is a spiral-shaped structure that contains the sensory cells responsible for hearing. The cochlea converts sound vibrations into neural signals that are sent to the brain. ...
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Name the hearing apparatus of human ear.

When a sound wave enters the ear, it sets the eardrum into oscillation, which in turn causes oscillation of 3 tiny bones in the middle ear called ossicles. This oscillation is finally transmitted to the fluid filled in inner portion of the ear termed as inner ear, the motion of the fluid disturbs hair cells within the inner ear which transmit nerve impulses to the brain with the information that a sound is present. The theree bones present in the middle ear are named as hammer, anvil and stirrup. Out of these the stirrup is the smallest one and this only connects the middle ear to inner ear as shown in the figure below. The area of stirrup and its extent of connection with the inner ear limits the sensitivity of the human ear consider a person's ear whose moving part of the eardrum has an area of about 50mm^2 and the area of stirrup is about 5mm^2 . The mass of ossicles is negligible. As a result, force exerted by sound wave in air on eardum and ossicles is same as the force exerted by ossicles on the inner ear. Consider a sound wave having maximum pressure fluctuation of 4xx10^-2Pa from its normal equilibrium pressure value which is equal to 10^5Pa . Frequency of sound wave in air is 332(m)/(s) . Velocity of sound wave in fluid (present in inner ear) is 1500(m)/(s) . Bulk modulus of air is 1.42xx10^5Pa . Bulk modulus of fluid is 2.18xx10^9Pa . Q. Find the displacement amplitude of given sound wave in the fluid of inner ear.

When a sound wave enters the ear, it sets the eardrum into oscillation, which in turn causes oscillation of 3 tiny bones in the middle ear called ossicles. This oscillation is finally transmitted to the fluid filled in inner portion of the ear termed as inner ear, the motion of the fluid disturbs hair cells within the inner ear which transmit nerve impulses to the brain with the information that a sound is present. The theree bones present in the middle ear are named as hammer, anvil and stirrup. Out of these the stirrup is the smallest one and this only connects the middle ear to inner ear as shown in the figure below. The area of stirrup and its extent of connection with the inner ear limits the sensitivity of the human ear consider a person's ear whose moving part of the eardrum has an area of about 50mm^2 and the area of stirrup is about 5mm^2 . The mass of ossicles is negligible. As a result, force exerted by sound wave in air on eardum and ossicles is same as the force exerted by ossicles on the inner ear. Consider a sound wave having maximum pressure fluctuation of 4xx10^-2Pa from its normal equilibrium pressure value which is equal to 10^5Pa . Frequency of sound wave in air is 332(m)/(s) . Velocity of sound wave in fluid (present in inner ear) is 1500(m)/(s) . Bulk modulus of air is 1.42xx10^5Pa . Bulk modulus of fluid is 2.18xx10^9Pa . Q. Find the pressure amplitude of given sound wave in the fluid of inner ear.

When a sound wave enters the ear, it sets the eardrum into oscillation, which in turn causes oscillation of 3 tiny bones in the middle ear called ossicles. This oscillation is finally transmitted to the fluid filled in inner portion of the ear termed as inner ear, the motion of the fluid disturbs hair cells within the inner ear which transmit nerve impulses to the brain with the information that a sound is present. The theree bones present in the middle ear are named as hammer, anvil and stirrup. Out of these the stirrup is the smallest one and this only connects the middle ear to inner ear as shown in the figure below. The area of stirrup and its extent of connection with the inner ear limits the sensitivity of the human ear consider a person's ear whose moving part of the eardrum has an area of about 50mm^2 and the area of stirrup is about 5mm^2 . The mass of ossicles is negligible. As a result, force exerted by sound wave in air on eardum and ossicles is same as the force exerted by ossicles on the inner ear. Consider a sound wave having maximum pressure fluctuation of 4xx10^-2Pa from its normal equilibrium pressure value which is equal to 10^5Pa . Frequency of sound wave in air is 332(m)/(s) . Velocity of sound wave in fluid (present in inner ear) is 1500(m)/(s) . Bulk modulus of air is 1.42xx10^5Pa . Bulk modulus of fluid is 2.18xx10^9Pa . Q. If the person is using an hearing aid, which increase the intensity of given sound wave change as perceived by inner ear?

PEARSON IIT JEE FOUNDATION-SOUND-COMPETITION CORNER Choose the correct option for each question. There is only one correct response for each question .
  1. Name the inner part of the ear.

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  2. Which of these sounds is harmful to human beings ?

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  3. Which of these can be classified under wind instruments ?

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  4. How is sound created in percussion instruments ?

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  5. What does 'SONAR' stand for ?

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  6. What is the process by which bats use sound waves to estimate the posi...

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  7. Which of these is a good reflector of sound ?

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  8. What is the frequency range of infrasound ?

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  9. What is the frequency range of ultrasound ?

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  10. What do you call range of sound that is audible to human beings ?

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  11. Which option correctly describes cochlea in human beings ?

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  12. What is the common name of malleus bone in human beings ?

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  13. Which of these constitutes outer ear in human beings ?

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  14. Which factor deeides strength of a sound wave ?

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  15. Which of these is necessary for a wave to occur ?

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  16. Which molecules are pushed closer to gether during compression of soun...

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  17. What is the function of the narrow slit in the vocal cords of larynx ?

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  18. Where is larynx located in human beings ?

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  19. Which organ helps in generating sound in human beings ?

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  20. What is the frequency of a simple pendulum that completes 10 oscilati...

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  21. On what factor does the pitch of sound depend ?

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